Home / 74,907.20-112,433.60-58,446.40

Finding the Fourth Proportional to 74,907.20, 112,433.60 and 58,446.40

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Solution

The fourth proportional to 74,907.20, 112,433.60 and 58,446.40 is: 87,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,907.20 : 112,433.60 = 58,446.40 : x
  2. Step 2: Convert to fraction form
    74,907.20/112,433.60 = 58,446.40/x
  3. Step 3: Cross multiply
    74,907.20x = 112,433.60 × 58,446.40
  4. Step 4: Simplify right side
    74,907.20x = 6,571,339,159.04
  5. Step 5: Solve for x
    x = 6,571,339,159.04/74,907.20
  6. Step 6: Final answer
    x = 87,726.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.